Linking alba backends requires domain-guid. API code disagrees

[openvstorage-ci]

From @JeffreyDevloo on December 5, 2016 10:24

Problem description

Domain_guid is not a required parameter in the metadata. Code ovs/lib/alba.py -- line 1185:

'backend_info': (dict, {'domain_guid': (str, Toolbox.regex_guid, False),

However, if this parameter is not given, the api will return 'domain_guid'. eg:

        task_guid = api.post(
            api='/alba/backends/{0}/link_alba_backends'
                .format(BackendHelper.get_alba_backend_guid_by_name(globalbackend_name)),
            data=data
        )

        task_result = api.wait_for_task(task_id=task_guid, timeout=timeout)

        if not task_result[0]:
            error_msg = "Linking backend `{0}` to global backend `{1}` has failed with error '{2}'".format(
                albabackend_name, globalbackend_name, task_result[1])
            BackendSetup.LOGGER.error(error_msg)
            raise RuntimeError(error_msg)

Gave:

RuntimeError: Linking backend `mybackend02` to global backend `mybackend-global` has failed with error ''domain_guid''

Packages

- openvstorage                         2.7.7-rev.4395.5099afe-1        amd64        openvStorage
- openvstorage-backend                 1.7.7-rev.851.85b61b8-1         amd64        openvStorage Backend plugin
- openvstorage-backend-core            1.7.7-rev.851.85b61b8-1         amd64        openvStorage Backend plugin core
- openvstorage-backend-webapps         1.7.7-rev.851.85b61b8-1         amd64        openvStorage Backend plugin Web Applications
- openvstorage-core                    2.7.7-rev.4395.5099afe-1        amd64        openvStorage core
- openvstorage-hc                      1.7.7-rev.851.85b61b8-1         amd64        openvStorage Backend plugin HyperConverged
- openvstorage-sdm                     1.6.7-rev.478.a1849c5-1         amd64        Open vStorage Backend ASD Manager
- openvstorage-webapps                 2.7.7-rev.4395.5099afe-1        amd64        openvStorage Web Applications

Copied from original issue: openvstorage/framework#1240

[kvanhijf]

https://github.com/openvstorage/framework-alba-plugin/pull/297 --> openvstorage-backend-1.7.7-rev.853.050d474

[JeffreyDevloo]

Steps

• Setup latest cluster
• Ran the same installation code as to when I encountered this problem

  Output

  Previously linking would give me a runtime error. Now I found

  2016-12-05 13:36:35 44400 +0100 - ovs-node-1 - 2252/140712057841408 - workflow/ci_workflow - 412 - INFO - Link LOCAL backend(s) to GLOBAL backend
  {u'status': u'STARTED', u'successful': False, u'failed': False, u'result': u"{'hostname': 'celery@ovs-node-1', 'pid': 1976}", u'ready': False, u'id': u'cc6f1fa5-16d8-4b3f-99a0-bc1cdf99f97d'}
  2016-12-05 13:36:36 59500 +0100 - ovs-node-1 - 2252/140712057841408 - setup/ci_backend_setup - 413 - INFO - Linking backend `mybackend02` to global backend `mybackend-global` should have succeeded
  {u'status': u'STARTED', u'successful': False, u'failed': False, u'result': u"{'hostname': 'celery@ovs-node-1', 'pid': 1977}", u'ready': False, u'id': u'46ae027f-e2e8-4985-a365-5200c63283bc'}
  2016-12-05 13:36:37 76500 +0100 - ovs-node-1 - 2252/140712057841408 - setup/ci_backend_setup - 414 - INFO - Linking backend `mybackend` to global backend `mybackend-global` should have succeeded

  The domains should be empty (as none were provided)

  Test result

  Test passed.